Maui Jim Lani GS239-10K Polarized Square Sunglasses,Koa Tortoise Frame/Neutral Grey Lens,One Size Composite Made in USA or Imported Composite frame Glass lens Polarized 100% UV protection coating Lens width: 56 millimeters Bridge: 17 millimeters Arm: 135 millimeters Case Included Lenses are prescription ready (Rx-able)